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Open Access Publications from the University of California


CIEE is a dedicated group of experts who define, conduct, and manage public-interest energy research. Based in the University of California, at CITRIS, CIEE puts its experts and other leading researchers from universities, government, industry, and nonprofits, to work on energy challenges, yielding new ideas and technologies to meet California’s pace-setting energy goals. 

California Institute for Energy and Environment (CIEE)

There are 42 publications in this collection, published between 2002 and 2020.
Energy Use in Buildings Enabling Technologies (32)

Broken Information Feedback Loops Prevent Good Building Energy Performance—Integrated Technological and Sociological Fixes Are Needed

Proceedings of the 2012 ACEEE Summer Study (Panel 12 Paper 1123). Information feedback loops for building performance range from the long-term—including university education of building designers; to the short term—including building occupants seeking to manage their environment with operable windows and thermostats, to building controls themselves on a time scale of seconds or minutes. In between are owners seeking to make informed renovation and retrofit decisions on a time scale of years, and operators looking for ongoing commissioning opportunities on a time scale of hours to months. Unfortunately all of these feedback loops are often broken, with meaningful convenient performance information typically unavailable for decision-making. We examine the current typical disconnects for each of the feedback loops, their interactions, and potential solutions.

Meter Scoping Study

This report presents a summary of metering technology and cost information from past studies in an attempt to identify key barriers to more widespread implementation.

29 more worksshow all
Electric Grid (10)

Grid Futures through Scenario Planning

For most of the 20th century, the electric grid had a relatively simple role: moving electricity from central power plants to the consumers. Its behavior was predictable, operation was largely deterministic, and an operator was in control. But with growing uncertainty, aging infrastructure and uncertainty in energy markets, we must begin to think about the future of the energy grid and restructuring to effectively rise to these challenges.

Distribution System Voltage Management and Optimization for Integration of Renewables and Electric Vehicles: Research Gap Analysis

California is striving to achieve 33% renewable penetration by 2020 in accordance with the state’s Renewable Portfolio Standard (RPS). The behavior of renewable resources and electric vehicles in distribution systems is creating constraints on the penetration of these resources into the distribution system. One such constraint is the ability of present-­‐‑day voltage management methodologies to maintain proper distribution system voltage profiles in the face of higher penetrations of PV and electric vehicle technologies. This white paper describes the research gaps that have been identified in current Volt/VAR Optimization and Control (VVOC) technologies, the emerging technologies which are becoming available for use in VVOC, and the research gaps which exist and must be overcome in order to realize the full promise of these emerging technologies.

Every Moment Counts: Synchrophasors for Distribution Networks with Variable Resources

Chapter 34 in the textbook, "Renewable Energy Integration: Practical Management of Variability, Uncertainty and Flexibility"

7 more worksshow all

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